Konjak has a great effect in our life. With the continuous increase of people's acceptance of it, konjak consumption has become a trend. Eating konjak can be of great help to our health, which is also an important factor for us to choose it.
An important process in konjak processing is peeling. Konjak should be soaked before cleaning and peeling, so that the hard mud in its edges, bud holes and grooves is soft and dissolved, and the cortex is brittle, so as to facilitate cleaning and peeling. There are two common methods for peeling:
One is to remove the skin manually. Use a bamboo scraper or a scraper made of stainless steel to remove the skin at the taro buds and grooves, or use a nylon brush to clean the sediment and skin on the surface of fresh konjak while brushing.
The other is mechanical peeling, which uses the brush installed in the machine to rotate and slide relatively between the cleaned taro balls, so as to achieve the purpose of cleaning and peeling fresh taro. Mechanical peeling is characterized by high efficiency and low cost. The peeling rate and cleaning rate are usually between 85% and 90%. It is difficult to remove the skin at the concave hole on the konjak surface by mechanical peeling, so after mechanical peeling, it should be cleaned manually to scrape off the skin that has not been removed. Chemical peeling method can also be adopted for peeling. Chemical peeling is to put the cleaned konjak tubers into sodium hydroxide solution (containing 0.5% glucomannan solvent) with a temperature of 60 ℃ - 95 ℃ and a concentration of 5% - 15%, soak them for 5min-15min, then take them out and wash konjak with water. The outer epidermis of konjak is all removed by the two methods of peeling.
